Global Patent Index - EP 1167556 A3

EP 1167556 A3 2002-09-25 - Process for recovery of aluminium from aluminium-bearing solid waste materials by lixiviation

Title (en)

Process for recovery of aluminium from aluminium-bearing solid waste materials by lixiviation

Title (de)

Verfahren zum Herauslösen von metallischem Aluminium aus aluminiumhaltigen, festen Abfällen

Title (fr)

Procédé de récuparation de l'aluminium par lixiviation à partir de déchets alumineux solides

Publication

EP 1167556 A3 (DE)

Application

EP 01890201 A

Priority

AT 11032000 A

Abstract (en)

[origin: EP1167556A2] Process for dissolving out metallic aluminum from aluminum-containing solid waste comprises: (a) mixing the crushed waste with alkali hydroxide and water to form a mixture having a pulpy consistency; (b) removing the hydrogen released; and (c) separating the aluminate formed from the aluminum with the aqueous phase of the mixture from the solid phase.

IPC 1-7 (main, further and additional classification)

C22B 21/00; C01F 7/04; C22B 3/12; C22B 7/00

IPC 8 full level (invention and additional information)

C22B 7/00 (2006.01); C22B 21/00 (2006.01)

CPC (invention and additional information)

C22B 7/008 (2013.01); C22B 21/0023 (2013.01); Y02P 10/234 (2015.11)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family

EP 1167556 A2 20020102; EP 1167556 A3 20020925; EP 1167556 B1 20060816; AT 409350 B 20020725; AT A11032000 A 20011215; DE 50110733 D1 20060928